Al Green, who won two R&B Grammys during the pre-telecast, replaced Rihanna in the lineup in a performance with Boyz II Men and Justin Timberlake.
Speculation is rampant that the cancellation is connected to an incident that occurred early this morning involving Rihanna's boyfriend, R&B star Chris Brown.
The Los Angeles Police Department was seeking Brown on a domestic violence felony battery report after he began arguing with the unnamed passenger in a car, said to be Rihanna. The argument escalated after they exited the vehicle but Brown wasn't at the scene by the time police arrived. Brown turned himself in to authorities around 7:15 p.m. PT.
Rihanna performed early this morning at Timbaland's pre-Grammy party. For Billboard.com's Grammy microsite, please click here.



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